Did you get stopped on the way up by any of the police speed controls?
I believe they stopped everything that was driving with a Singaporean licence plate.
Thinking of it, there was probably no way that they could stop your big slow ass for speeding
"Here's to alcohol, the cause of many—and solution to—all life's problems.
Whether you'll be effected or not will depend on the time of day that you decide to go through the causeway.
Weekends should be no probs at most times except coming back into Sing in the evening say 5-8pm as all the Singapore 'Johor- shoppers' will be coming back at that time - whether it effects the bikes or not I'm not sure but there always seems to be more bike/car traffic at around that time.
If I were you, I'd ride up/down at night and bugger the speeding/customs problems - not too mention the heat!